Duct integrity/Proving Mandrel are pulled through duct to prove joint integrity and test duct integrity for round duct, conduit or interdict used in telecom, gas & water networks.
Each mandrel has a Teflon body with two braided steel loop eyes on each end for versatility and strength. It is designed to give an 80% fill, based on size of mandrel chosen. Duct mandrel offered are based on highest grade industrial polymers & inputs.
Duct mandrel are available in various size options based on pipe inner dia sizes.